Parser::Parser Class Reference
[Dependency Parser]

Base class for parsers. More...

#include <Parser.h>

Inheritance diagram for Parser::Parser:

Public Member Functions
	Parser (WordIndex &predIndex)
virtual void	train (SentenceReader sentenceReader, char const modelFile)
	Train statistical model using sentences obtained through a `sentenceReader`, and save the generated model to `modelFile`.
virtual Sentence *	parse (Sentence *sentence)
	Parse the given Sentence `sentence`.
virtual void	parse (SentenceReader *sentenceReader, std::ostream &os=std::cout)
	Parse all sentences extracted by `sentenceReader`, sending output to `os`.
virtual void	revise (SentenceReader sentenceReader, char const actionFile=0)
	Produce a revision of a document parses, using either a model or an action file.
std::deque< Sentence * >	collectSentences (Enumerator< Sentence * > *sentenceReader)
	Collect sentences and replace unfrequent token attributes with UNKNOWN.
virtual void	showEval (int tokenCount, int las, int uas, int sentCount)
	Print accuracy estimates.
void	writeHeader (std::ostream &os)
	Write model header to stream.
Enumerator< Sentence * > *	pipe (Enumerator< std::vector< Token * > * > &tve)
	IPipe interface.
Enumerator< Sentence * > *	pipe (Enumerator< Sentence * > &tce)
	Alternative pipeline interface, that allows connecting directly to a SentenceReader.
virtual void	preprocess (Sentence *sentence)
	Preprocess sentence, e.g.
Static Public Member Functions
static Parser *	create (char const *modelFile=0)
	Create a Parser based on configuration and data in file `modelFile`.
static bool	readHeader (std::istream &is)
	Read model header from stream.
static std::string	procStat ()
	Return a string of process statistics: time: user+sys elapsed, realtime elapsed, CPU usage, memory usage.
Public Attributes
WordIndex &	predIndex
GlobalInfo	info
Static Public Attributes
static IXE::conf< int >	featureCutoff
	Drop features which occur less than this number of times.
static IXE::conf< int >	lexCutoff
	Form or lemmas occurring less than LexCutoff are collapsed to Unknown.
static IXE::conf< bool >	verbose
	Control output.

Detailed Description

Base class for parsers.

Member Function Documentation

virtual Sentence* Parser::Parser::parse ( Sentence * sentence ) [inline, virtual]

Parse the given Sentence sentence.

Returns:: a newly allocated

See also:: Sentence.

Reimplemented in Parser::ApParser, Parser::MeParser, Parser::MlpParser, Parser::MultiSvmParser, and Parser::SvmParser.

Referenced by Parser::ParserSentPipe::Current(), Parser::ParserPipe::Current(), and Parser::ParserPipePython::Current().

Enumerator< Sentence * > * Parser::Parser::pipe ( Enumerator< std::vector< Token * > * > & tve )

IPipe interface.

Returns:: an Enumerator connected in pipeline to

Parameters:

tve.

void Parser::Parser::preprocess ( Sentence * sentence ) [virtual]

Preprocess sentence, e.g.

normalize tokens.

References Tanl::Token::links.

Referenced by collectSentences(), Parser::SvmParser::parse(), Parser::MultiSvmParser::parse(), Parser::MlpParser::parse(), Parser::MeParser::parse(), and Parser::ApParser::parse().

static bool Parser::Parser::readHeader ( std::istream & is ) [static]

Read model header from stream.

Parameters:

is.

Returns:: true if successful.

Referenced by create().

virtual void Parser::Parser::revise	(	SentenceReader *	sentenceReader,
		char const *	actionFile = `0`
	)			`[inline, virtual]`

Produce a revision of a document parses, using either a model or an action file.

If an actionFile is provided, it must contain a list of actions, one per line, to apply to the parse trees, otherwise the actions to perform revisions are determined using the model.

Reimplemented in Parser::ApParser, Parser::MeParser, and Parser::MlpParser.